مَّثَلُ ٱلَّذِينَ كَفَرُواْ بِرَبِّهِمۡۖ أَعۡمَٰلُهُمۡ كَرَمَادٍ ٱشۡتَدَّتۡ بِهِ ٱلرِّيحُ فِي يَوۡمٍ عَاصِفٖۖ لَّا يَقۡدِرُونَ مِمَّا كَسَبُواْ عَلَىٰ شَيۡءٖۚ ذَٰلِكَ هُوَ ٱلضَّلَٰلُ ٱلۡبَعِيدُ ١٨
The example of those who disbelieve in their Lord is [that] their deeds are like ashes which the wind blows forcefully on a stormy day; they are unable [to keep] from what they earned a [single] thing. That is what is extreme error.
Translation: Saheeh International (English)
Each word's meaning and sound
The righteous actions of the disbelievers, such as giving charity and having kindness and mercy towards a weak person, are like ashes on a windy day. They are carried away by the wind and scattered all over the place until no trace of them remains. Such are the deeds of the disbelievers, which are blown away by disbelief. These deeds will not benefit their owners on the Day of Judgement. Actions that are not based on faith are deviations that are far from the path of truth.
Al-Mukhtasar in interpreting the Noble Quran